DYNAMIC POWER DIVIDER CIRCUITS AND METHODS

摘要

The present disclosure includes dynamic power divider circuits and methods. In one embodiment, a dynamic power divider includes first and second quarter wave lines that receive an input signal and produce first and second signal on second terminals of the lines. Dynamic power division of the input signal uses a variable impedance circuit between the second terminal of the first quarter wave line and the second terminal of the second quarter wave line. The variable impedance may reduce impedance between two output paths as the input signal power increases or increase impedance between the output paths as the input signal power decreases.

主权项

1. A circuit comprising:
a first quarter wave line having a first terminal and a second terminal, wherein the first terminal of the first quarter wave line receives an input signal; a second quarter wave line having a first terminal and a second terminal, wherein the first terminal of the second quarter wave line receives the input signal; a variable impedance circuit coupled between the second terminal of the first quarter wave line and the second terminal of the second quarter wave line, the variable impedance circuit having a control input to adjust an impedance of the variable impedance circuit; and a power control circuit configured to receive a first signal and an output coupled to the control input of the variable impedance circuit to adjust the impedance of the variable impedance circuit responsive to the first signal, wherein the impedance of the variable impedance circuit is decreased when a power of the input signal increases to increase the power at the second terminal of the second quarter wave line, and the impedance of the variable impedance circuit is increased when the power of the input signal decreases to decrease the power at the second terminal of the second quarter wave line.